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Table 3 Shift-share decomposition of changes in occupational shares (pp) by type of occupations using alternative routine classifications, 1979–2012

From: The anatomy of job polarisation in the UK

  Non routine occupations Routine occupations
Total Between Within Total Between Within
(A) Routine classification based on Acemoglu and Autor (2011)
 Bottom 4.2 − 4.6 8.8 − 0.7 − 4.3 3.6
 Middle 2.6 1.6 1.0 − 21.8 − 8.8 − 13.0
 Top 16.6 16.3 0.3 − 0.8 − 0.1 − 0.7
 All     − 23.4 − 13.2 − 10.1
(B) Routine classification based on RTI index from Goos et al. (2014)—top 30%
 Bottom 6.1 − 6.9 12.9 − 1.6 − 1.1 − 0.4
 Middle − 7.9 − 2.9 − 4.9 − 11.5 − 1.4 − 10.1
 Top 14.9 12.3 2.6 0.0 0.0 0.0
 All     − 12.7 − 3.4 − 9.3
(C) Routine classification based on RTI index from Akçomak et al. (2016)—top 30%a
 Bottom 6.5 − 4.2 10.7 − 3.0 − 4.7 1.7
 Middle − 6.7 − 1.5 − 5.1 − 12.6 − 5.7 − 6.9
 Top 15.9 16.2 − 0.3 − 0.1 0.0 − 0.1
 All     − 15.7 − 10.5 − 5.3
  1. Results from a shift-share analysis with 48 groups: 4 education groups, 3 age groups, gender, immigration status. Details on the routine classifications are provided in Sect. 6 and Additional file 1: Appendix S4
  2. The discrepancies between the totals in Panel B and the other two panels is due to the fact that the RTI index from Goos et al. (2014) is only available for 21 ISCO 88 codes
  3. aDue to the size of the underlying occupations, the actual initial share of routine occupations here is 40% as shown in Table 3